Sodium 2,4-diaminobenzenesulfonate

Sodium 2,4-diaminobenzenesulfonate is a grayish-white powder — the monosodium salt of 2,4-diaminobenzenesulfonic acid. The dual amino groups and sodium sulfonate confer high reactivity and water solubility, making it an indispensable key raw material in fine chemicals.

In line with the trend of environmental upgrading, it serves as an internal emulsifying chain extender for waterborne polyurethane (WPU), effectively replacing traditional organic solvents and helping downstream manufacturers achieve green production processes with near-zero VOC emissions.